September 14, 2026 · JACC. Cardiovascular interventions · DOI: 10.1016/j.jcin.2026.06.028

Impact of Diabetes on Outcomes of Contemporary PCI Guided by OCT vs Angiography: The ILUMIEN IV Trial

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The authors of the ILUMIEN IV trial aimed to evaluate how diabetes and complex coronary lesions affect outcomes in patients undergoing percutaneous coronary intervention (PCI) guided by optical coherence tomography (OCT) compared to angiography. They found that diabetic patients had significantly higher rates of target vessel failure and serious major adverse cardiovascular events after PCI, regardless of the guidance method used, with those having both diabetes and complex lesions at the highest risk. Ultimately, OCT guidance did not improve outcomes for either diabetic or nondiabetic patients.

Luise Gaede, Stephan Achenbach, Mohamed Marwan, Richard A Shlofmitz, Franco Fabbiocchi, Fernando Alfonso, Paolo Canova, David Leistner, Jana Buccola, Robert McNutt, Hong Nie, Robert McGreevy, Akiko Maehara, Ulf Landmesser, Ziad A Ali, Gregg W Stone, ILUMIEN IV Investigators

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